The arrival of Puck's debut single, "Caricature," feels less like a release and more like a jailbreak. From the opening crackle, this is a song that’s been chewing on its own chains for some time. Galway's five-piece racket-makers have bottled a very specific kind of frenetic energy, the kind you get from too much coffee and staring at a flickering screen until society starts...

The fiercely independent, Idaho-raised rapper nick! channels a deeply overstimulated, restless frequency on his new EP, "GEEKED!". Born in 2006 and building a fervent following entirely without industry co-signs, he occupies an interesting lane in new-wave underground hip-hop. His music sounds precisely like the brain chemistry of an internet-raised creative processing the blinding speed of newfound success. He writes and produces melodic, hard-hitting rap...